kaptcha配置属性表

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ConstantDescriptionDefaultkaptcha.borderBorder around kaptcha. Legal values are yes or no.yeskaptcha.border.colorColor of the border. Legal values are r,g,b (and optional alpha) or white,black,blue.blackkaptcha.border.thicknessThickness of the border around kaptcha. Legal values are > 0.1kaptcha.image.widthWidth in pixels of the kaptcha image.200kaptcha.image.heightHeight in pixels of the kaptcha image.50kaptcha.producer.implThe image producer.com.google.code.kaptcha.impl.DefaultKaptchakaptcha.textproducer.implThe text producer.com.google.code.kaptcha.text.impl.DefaultTextCreatorkaptcha.textproducer.char.stringThe characters that will create the kaptcha.abcde2345678gfynmnpwxkaptcha.textproducer.char.lengthThe number of characters to display.5kaptcha.textproducer.font.namesA list of comma separated font names.Arial, Courierkaptcha.textproducer.font.sizeThe size of the font to use.40px.kaptcha.textproducer.font.colorThe color to use for the font. Legal values are r,g,b.blackkaptcha.noise.implThe noise producer.com.google.code.kaptcha.impl.DefaultNoisekaptcha.noise.colorThe noise color. Legal values are r,g,b.blackkaptcha.obscurificator.implThe obscurificator implementation.com.google.code.kaptcha.impl.WaterRipplekaptcha.background.implThe background implementation.com.google.code.kaptcha.impl.DefaultBackgroundkaptcha.background.clear.fromStarting background color. Legal values are r,g,b.light greykaptcha.background.clear.toEnding background color. Legal values are r,g,b.whitekaptcha.word.implThe word renderer implementation.com.google.code.kaptcha.text.impl.DefaultWordRendererkaptcha.session.keyThe value for the kaptcha is generated and is put into the HttpSession. This is the key value for that item in the session.KAPTCHA_SESSION_KEYkaptcha.session.dateThe date the kaptcha is generated is put into the HttpSession. This is the key value for that item in the session.KAPTCHA_SESSION_DATE